National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Altoona - Blair County Airport (KAOO)

Lat: 40.3°NLon: 78.32°WElev: 1467ft.

Fog

42°F

6°C

Humidity 96%
Wind Speed NE 3 mph
Barometer 30.20 in (1023.7 mb)
Dewpoint 41°F (5°C)
Visibility 0.25 mi
Last update 4 Mar 3:53 pm EST
Extended Forecast for

2 Miles ENE Williamsburg PA

  • This Afternoon

    This Afternoon: A slight chance of rain. Mostly cloudy, with a high near 43. Calm wind. Chance of precipitation is 20%.

    High: 43 °F

    Slight Chance
    Rain

  • Tonight

    Tonight: Rain, mainly after 1am. Areas of fog after 10pm. Low around 43. Calm wind. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 43 °F

    Chance Rain
    and Areas Fog
    then Rain and
    Areas Fog

  • Thursday

    Thursday: Rain and possibly a thunderstorm before 10am, then rain between 10am and 4pm, then rain and possibly a thunderstorm after 4pm. Patchy fog before 1pm. High near 57. Calm wind. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 57 °F

    Rain and
    Patchy Fog

  • Thursday Night

    Thursday Night: Rain and possibly a thunderstorm before 1am, then rain likely. Low around 48. Calm wind. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 48 °F

    Rain

  • Friday

    Friday: A chance of showers. Mostly cloudy, with a high near 62. Calm wind becoming south around 5 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 62 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A slight chance of showers. Mostly cloudy, with a low around 49. Chance of precipitation is 20%.

    Low: 49 °F

    Slight Chance
    Showers

  • Saturday

    Saturday: A chance of showers before 1pm, then showers and possibly a thunderstorm between 1pm and 4pm, then showers after 4pm. High near 73. Chance of precipitation is 80%.

    High: 73 °F

    Chance
    Showers then
    Showers

  • Saturday Night

    Saturday Night: Showers likely before 1am. Mostly cloudy, with a low around 48. Chance of precipitation is 60%.

    Low: 48 °F

    Showers
    Likely

  • Sunday

    Sunday: Mostly sunny, with a high near 62.

    High: 62 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A slight chance of rain. Mostly cloudy, with a high near 43. Calm wind. Chance of precipitation is 20%.
Tonight
Rain, mainly after 1am. Areas of fog after 10pm. Low around 43. Calm wind. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Thursday
Rain and possibly a thunderstorm before 10am, then rain between 10am and 4pm, then rain and possibly a thunderstorm after 4pm. Patchy fog before 1pm. High near 57. Calm wind. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Thursday Night
Rain and possibly a thunderstorm before 1am, then rain likely. Low around 48. Calm wind. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Friday
A chance of showers. Mostly cloudy, with a high near 62. Calm wind becoming south around 5 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
A slight chance of showers. Mostly cloudy, with a low around 49. Chance of precipitation is 20%.
Saturday
A chance of showers before 1pm, then showers and possibly a thunderstorm between 1pm and 4pm, then showers after 4pm. High near 73. Chance of precipitation is 80%.
Saturday Night
Showers likely before 1am. Mostly cloudy, with a low around 48. Chance of precipitation is 60%.
Sunday
Mostly sunny, with a high near 62.
Sunday Night
Mostly clear, with a low around 44.
Monday
Sunny, with a high near 67.
Monday Night
Partly cloudy, with a low around 51.
Tuesday
A chance of showers. Partly sunny, with a high near 75. Chance of precipitation is 30%.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 58. Chance of precipitation is 40%.
Wednesday
Showers likely. Mostly cloudy, with a high near 76.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ENE Williamsburg PA
 40.47°N 78.18°W (Elev. 1053 ft)
Last Update:
3:26 pm EST Mar 4, 2026
Forecast Valid:
3pm EST Mar 4, 2026-6pm EDT Mar 11, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation